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Antibodies may play a role in the prevention of Alzheimer’s disease

When researchers studied blood samples from more than 250 individuals who were between 21 and 89 years old, and either did or did not have Alzheimer’s disease, they found the presence of antibodies which targeted amyloid beta in the blood. The levels of these antibodies dropped as the subjects grew older and continued to drop in individuals with the brain disorder as the disease progressed.